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Table 4 Nitrogen isotope composition of vegetative cuttings, pre-flush and post-flush (‰ ± SE; N = 5 except for roots (N = 2-5) where replicates were combined when root biomass was too low for analysis), for four randomly selected Populus trichocarpa Torr. & Gray genotypes flushed in ddH 2 O containing no exogenous sources of nitrogen for 21 days

From: Quantifying remobilization of pre-existing nitrogen from cuttings to new growth of woody plants using 15N at natural abundance

 

Pre-flush cutting

Post-flush cutting

Genotype

CuttingStem δ15N

Bud δ15N

CuttingStem δ15N

Shoot δ15N

Root δ15N

LILD 26-3

2.34 ± 0.17

1.97 ± 0.27

2.11 ± 0.34

2.53 ± 0.13

3.08 ± 0.02

LILD 26-5

1.68 ± 0.16

1.97 ± 0.24

1.63 ± 0.36

1.63 ± 0.06

2.46 ± 0.04

TOBA 23-3

3.35 ± 0.26

2.25 ± 0.18

2.82 ± 0.46

2.88 ± 0.08

3.02 ± 0.06

PHLA 22-1

2.35 ± 0.17

2.28 ± 0.16

2.34 ± 0.37

2.41 ± 0.08

2.20 ± 0.26

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Plant Methods

ISSN: 1746-4811